Bikaner vs Kollam
Side-by-side air quality comparison between Bikaner and Kollam.
Live AQI from Open-Meteo CAMS (~45 km global model, updated hourly). Multi-year history from CPCB station data via aqinow.co pipeline (2016–2024, station-level daily records).
AQI Comparison
Pollutant-level comparison (PM2.5, PM10, O3, NO2, SO2, CO)▾
| Pollutant | Bikaner | Kollam |
|---|---|---|
| PM2.5(µg/m³) | 67.50 | 4.70 |
| PM10(µg/m³) | 210.00 | 7.20 |
| NO₂(µg/m³) | 3.50 | 4.00 |
| SO₂(µg/m³) | 2.20 | 1.50 |
| O₃(µg/m³) | 52.00 | 31.00 |
| CO(µg/m³) | 146.00 | 91.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Bikaner averaged an AQI of 154 while Kollam averaged 84 — a 70-point (83%) gap, with Bikaner the more polluted and Kollam the cleaner of the two. On 534 days when both cities reported, Kollam was cleaner on 493 of them; the average daily gap was 88 AQI points.
Seasonality & days
Both cities see their worst air in January on average. Bikaner logged 0.1% Severe days and 21.6% Good-or-Satisfactory days; Kollam was 0% Severe and 81% Good-or-Satisfactory. Longest clean-air streaks: Bikaner 15 days, Kollam 65 days.
Year-over-year progress
Bikaner has improved by 16 AQI points (9.4%) from 2023 to 2024; Kollam has improved by 2 AQI points (2.3%) over the same window. The worst recorded day for Bikaner reached AQI 403 at MM Ground (RSPCB) on 2024-11-17; Kollam hit AQI 272 at Polayathode Kollam (PCB) on 2024-04-06.
Station-level disparity
Bikaner spans 1 CPCB stations with a 0-point spread (min 162, max 162); Kollam spans 1 stations with a 0-point spread (min 84, max 84).
Verdict
🏆 Kollam has better air quality with an AQI of 8 compared to Bikaner's 174. That's a significant difference of 166 points.